In addition, it is also recommended for environmental reasons, since the filter cartridge, for example, 3M - Active filter cartridges A2 06 915 (Pa / 2 pcs.) Can be exchanged. Thus, the mask is in the longer term also cheaper than disposable masks.
+ Good adjustable
+ Easy
+ Soft
+ Filter cartridges are replaceable
+ Installation of Filterparonen is easy and secure
+ Less waste